... valve 12V, DN20, with manual switch, 2 way, electrical valve,brass Description:This listing ... kinds of requirements.2).Float ball design, no leak, most suitable for heavy dirt and long time no ... not be worked.4). Under the pressure between 1Mpa and 2Mpa, the working current is only 45mA ... off, the valve remain fully open position. 2.Connecting SW and CLOSE, the valve close, getting the position, ...